Android中Dialog对话框

布局文件xml：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".DialogActivity" >

    <Button
        android:id="@+id/plainDialog"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="普通Dialog" />

    <Button
        android:id="@+id/plainDialogEvent"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Dialog按钮事件集中处理" />

    <Button
        android:id="@+id/inputDialog"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="请输入框" />

    <Button
        android:id="@+id/listDialog"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="列表对话框" />

    <Button
        android:id="@+id/radioDialog"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="单选对话框" />

    <Button
        android:id="@+id/checkboxDialog"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="多选对话框" />

    <Button
        android:id="@+id/diyDialog"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="自定义布局对话框" />

</LinearLayout>

Activity文件：

普通的dialog：

private void plainDialogDemo() {

        Button plainBtn = (Button) findViewById(R.id.plainDialog);
        plainBtn.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {

                new AlertDialog.Builder(DialogActivity.this)
                        .setTitle("删除")
                        .setMessage("确定删除指定数据")
                        .setPositiveButton("确定",
                                new DialogInterface.OnClickListener() {

                                    @Override
                                    public void onClick(DialogInterface dialog,
                                            int which) {
                                        Toast.makeText(getApplicationContext(),
                                                "确定了", Toast.LENGTH_SHORT)
                                                .show();
                                    }
                                })
                        .setNegativeButton("取消",
                                new DialogInterface.OnClickListener() {

                                    @Override
                                    public void onClick(DialogInterface dialog,
                                            int which) {
                                    }
                                }).setCancelable(false).show();
            }
        });
    }

效果如下：

输入文本框的dialog：

private void inputDialog() {
        Button inputBtn = (Button) findViewById(R.id.inputDialog);
        inputBtn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                final EditText et = new EditText(DialogActivity.this);
                new AlertDialog.Builder(DialogActivity.this)
                        .setTitle("请输入数字")
                        .setView(et)
                        .setPositiveButton("确定",
                                new DialogInterface.OnClickListener() {

                                    @Override
                                    public void onClick(DialogInterface dialog,
                                            int which) {
                                        // TODO Auto-generated method stub
                                        Toast.makeText(getApplicationContext(),
                                                et.getText(),
                                                Toast.LENGTH_SHORT).show();
                                    }
                                }).setNegativeButton("取消", null)
                        .setCancelable(false).show();
            }
        });
    }

效果如下：

列表dialog：

private void listDialogDemo() {
        Button listBtn = (Button) findViewById(R.id.listDialog);
        listBtn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                final String[] names = { "C罗", "J罗", "H罗" };
                new AlertDialog.Builder(DialogActivity.this).setTitle("列表对话框")
                        .setItems(names, new DialogInterface.OnClickListener() {

                            @Override
                            public void onClick(DialogInterface dialog,
                                    int which) {
                                Toast.makeText(DialogActivity.this,
                                        names[which], Toast.LENGTH_SHORT)
                                        .show();
                            }
                        }).setNegativeButton("取消", null).show();
            }
        });
    }

效果如下：

单选dialog：

private void radioDialogDemo() {
        Button radioButton = (Button) findViewById(R.id.radioDialog);
        radioButton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

                final String[] names = { "C罗", "J罗", "H罗" };
                new AlertDialog.Builder(DialogActivity.this)
                        .setTitle("列表对话框")
                        .setSingleChoiceItems(names, 0,
                                new DialogInterface.OnClickListener() {

                                    @Override
                                    public void onClick(DialogInterface dialog,
                                            int which) {

                                        selecteName = names[which];
                                    }
                                })
                        .setPositiveButton("确定",
                                new DialogInterface.OnClickListener() {

                                    @Override
                                    public void onClick(DialogInterface dialog,
                                            int which) {

                                        Toast.makeText(DialogActivity.this,
                                                selecteName, Toast.LENGTH_SHORT)
                                                .show();
                                    }
                                }).setNegativeButton("取消", null).show();
            }
        });
    }

效果如下：

多选dialog：

private void checkDialogDemo() {
        Button checkBtn = (Button) findViewById(R.id.checkboxDialog);
        checkBtn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                final String[] names = { "C罗", "J罗", "H罗" };
                final boolean[] selected = new boolean[] { true, false, true };
                new AlertDialog.Builder(DialogActivity.this)
                        .setMultiChoiceItems(
                                names,
                                selected,
                                new DialogInterface.OnMultiChoiceClickListener() {

                                    @Override
                                    public void onClick(DialogInterface dialog,
                                            int which, boolean isChecked) {

                                    }
                                })
                        .setPositiveButton("确定",
                                new DialogInterface.OnClickListener() {

                                    @Override
                                    public void onClick(DialogInterface dialog,
                                            int which) {
                                        StringBuilder sb = new StringBuilder(
                                                "你选择了：");
                                        for (int i = 0; i < names.length; i++) {
                                            if (selected[i]) {
                                                sb.append(names[i]);
                                            }
                                        }
                                        Toast.makeText(DialogActivity.this,
                                                sb.toString(), 1).show();
                                    }
                                }).setNegativeButton("取消", null).show();
            }
        });
    }

效果如下：

自定义dialog：

private void customDialogDemo() {
        final AlertDialog dlg = new AlertDialog.Builder(this).create();
        dlg.show();
        Window window = dlg.getWindow();
        window.setContentView(R.layout.diylayout);
        ImageButton ok = (ImageButton) window.findViewById(R.id.btnok);
        ok.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(), "关闭了",
                        Toast.LENGTH_SHORT).show();
                dlg.dismiss();
            }
        });
    }

自定义布局：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <ImageView
        android:id="@+id/dialogimg"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:src="@drawable/dialog_bg" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@id/dialogimg"
        android:layout_alignTop="@id/dialogimg"
        android:layout_marginLeft="50dp"
        android:layout_marginTop="60dp"
        android:text="自定义的dialog" />

    <ImageButton
        android:id="@+id/btnok"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:layout_alignRight="@id/dialogimg"
        android:layout_alignTop="@id/dialogimg"
        android:layout_marginRight="15dp"
        android:layout_marginTop="15dp"
        android:background="@drawable/close_dialog" />

</RelativeLayout>

效果如下：